Hammerite 3D

Hammerite is a brush-based level editor for Godot that runs inside your game. You edit the level in the same running game you play it in, so there is no edit-save-run loop: change a room, switch to playing and walk into it.

It also comes with a retro radiosity lightmapper, sound propagation and navigation, all built from the same level data.

One licence per individual or company, perpetual and royalty-free. Please read the licence section below before buying.

Edit and test in the same game

The editor is a layer over your running game. You can carve a doorway and walk through it, bake the light and look at it from where you stand, or close a door and hear the guard behind it go quiet. You do not need to save, export or reload anything before trying a change.

Subtractive workflow

Solid is the default. You carve rooms out of it with air brushes, and the compiler works out the rest: which air is one room, where rooms open into each other, and which walls are visible. Overlap brushes to extend a space, and abut them to divide one.

Lighting, sound and navigation all use the same compiled world, so a room is lit, heard and walkable as soon as it is carved. An edit recompiles only what it touched, in milliseconds.

Lighting

• GPU radiosity lightmapper, in the spirit of the classic brush-based games: bounced light, colour bleeding from the walls.
• Four light slots per surface, so baked lamps can flicker, dim and switch on and off at runtime without rebaking.
• Quick bake that lights only the walls an edit changed.
• Light probes for anything that moves, and a light level you can sample for stealth gameplay.

Sound

• Sound travels through doorways and windows instead of through walls, and a closed door muffles it.
• Reverb from each room's size and surfaces.
• Rain and wind heard outdoors, and indoors through the nearest windows.
• AI hears sounds the same way the player does.

Navigation

Walkable ground and traversal links come from the carved rooms, as Godot navigation meshes for each kind of agent.

Shipping the editor

The editor has its own manual under Help. Your game may ship it, so your players can make levels too, royalty-free.

What you get

• Four Godot addons: core, editor, audio and navigation.
• One native library for macOS (Apple silicon and Intel), Windows and Linux on x86-64. There is no web export.
• Two packages: full with everything, and runtime without the editor, for games where the players never open it.
• An example project, and full documentation with guides and an API reference: https://misukatti.fi/hammerite/docs/

Requires Godot 4.7+.

Licence

Please read this before buying. Hammerite is commercial software. One licence covers one buyer, an individual or a company, including its employees and contractors working on its games. The licence is perpetual.

You may:

• Use and modify Hammerite to make your own games.
• Ship it in your games and sell them, royalty-free.
• Let your players make maps and mods with the editor inside your game. They do not need a licence of their own.

You may not:

• Share, resell or sublicense Hammerite, except as part of your game.
• Offer it to other developers as a tool, template, framework or asset, paid or free.
• Give players the editor as a standalone tool or addon, separate from your game.
• Remove or change the copyright notices in it.
• Transfer your licence to someone else without written consent.

Updates may come, but are not promised, and the software is provided as is. The agreement is under Finnish law.

Buying means accepting the full licence: https://misukatti.fi/hammerite/licence/

About

I am building Hammerite for my own game, City of Thieves, a first-person stealth game, so every feature is used in a real game first. You can read more about how Hammerite came to be on the blog: https://misukatti.fi/blog/

Questions: hello@misukatti.fi